+dev-platform (correct mailing list this time) On Tue, May 16, 2017 at 4:15 PM, Ritu Kothari <rkoth...@mozilla.com> wrote:
> Goal: We need to implement a soft code freeze on mozilla-central repo > during the last week of Nightly cycle. > > Nightly version > > Soft code freeze > > Merge day > > 55 > > June 5th - June 12th > > June 12th > > 56 > > July 31st - Aug 7th > > Aug 7th > > 57 > > Sept 18th - Sept 25th > > Sept 25th > > Why? > > In the post-dawn world (aka no aurora stabilization), we need a mechanism > to limit the risk to quality with last-minute changes landing in Nightly > before Merge day. > > How? > > The week before Merge day will involve increased scrutiny of patches > landing in mozilla-central that might regress quality and/or stability. > This code freeze does not mean mozilla-central repo will be locked and no > patches will be allowed to land. However, developers are strongly urged not > to land any fixes that are deemed risky or enable (pref-controlled) > features a week before Merge day. We recommend you wait until after Merge > day to land such fixes on mozilla-central. > > We will be more aggressive with backing out patches from m-c that cause > new regressions and merge blockers. If a patch is blamed to introduce a new > regression/top crasher in Nightly, instead of waiting for a followup fix > which we normally do, release mgmt team will ask for an immediate backout. > > What? > > Dos and Don’ts during the soft code freeze: > > Do: > > - > > Be ready to backout patches that cause crash spikes, new crashes, > severe regressions > - > > Monitor new regressions and escalate merge blockers > - > > Support release management to prioritize fixing merge blockers > > Do Not: > > - > > Land a risky patch or a large patch a week before Merge day > - > > Land new features a week before Merge day > - > > Flip prefs that enable new Features that were untested in Nightly cycle > - > > Plan to kick off new experiments > > Please let us know if you have any questions/concerns. > > Thanks, > Release management team > _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
